A completely revised and updated version of the 1957 film of the same title. The two earlier versions of this film (1928 and 1957) were both based on Robert Willis' 1847 translation of Harvey's De Motu Cordis for the Sydenham Society. This version is based directly on Harvey's original text, and corrects a number of minor errors and omissions in the earlier versions, as well as incorporating much new historical research. At the University of Padua, Harvey was taught the anatomy of Galen and Vesalius, the more recent work of Columbus having been larely rejected. However, Harvey's own research into the anatomy and physiology of the heart was to highlight, many of the errors of the classical anatomists, and largely to vindicate Columbus' criticims of Galen. With the aid of animated diagrams and dissections, the film describes the way in which Harvey formulated his revolutionary new theories of cardiac action and of the motion of the blood throgh the heart, arteries and veins. The commentary is taken very largely from Harvey's own writings, and the film shows how Harvey verified his conclusions regarding the circulation of the blood by repeating his key experiments. 7 segments.

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